Fully clamped coupled inductors in power conversion circuits
a technology of power conversion circuit and inductor, which is applied in the direction of dc circuit to reduce harmonics/ripples, electric variable regulation, instruments, etc., can solve the problems of increasing the leakage inductance in these circuits, reducing reducing the size and cost of power converter circuits. , to achieve the effect of improving the electromagnetic compatibility reducing the size and cost of power converter circuits,
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[0076]FIG. 8 illustrates the FIG. 3 circuit with the addition of an improvement, which is the subject of this invention. The improvement consists of an active clamp network comprising an active clamp switch SSECCLAMP and a capacitor CSECCLAMP.
[0077]In FIG. 8 a voltage source VIN has a first terminal connected to a first terminal of an input capacitor CIN, to a first terminal of a clamp capacitor CPRICLAMP, and to a first terminal of a primary winding of a flyback transformer TMAIN. A second terminal of the voltage source VIN is connected to a second terminal of the input capacitor CIN and to a first terminal of a switch SPRIMAIN. A second terminal of the switch SPRIMAIN is connected to a first terminal of a switch SPRICLAMP and to a second terminal of the primary winding of the transformer TMAIN. FIG. 8 illustrates a leakage inductance LLEAK connected in series with the primary winding of the transformer TMAIN, but it should be understood that LLEAK is an inherent part of TMAIN and ...
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